445 Grand Bay Drive, Unit PH-1AKey Biscayne, FL 33149Sale Price: $11,375,000

  • Sale Price: $11,375,000
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Federal 30-year interest rate: 6.5300000000000000000000000000000000000000% last updated on May 28, 2026
* All Figures are estimates. Check with your bank or proposed mortgage company for actual interest rates.
This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.
  • $11,375,000Sale Price
  • 5Bedrooms
  • 5Full Bath
  • 1Half Baths
  • 8,435Square Feet

Listing Tools

Welcome home to the most desirable penthouse in Key Biscayne as featured in Architectural digest! Located in a world-class condominium, this one-of-a-kind corner PH offers elegance, comfort, and unparalleled luxury. Stunning views of the ocean, bay and Miami skyline make this PH irreplaceable. As per developer’s floor plan this PH offers 8,435 SF under A/C plus 2,825 SF of terraces for a total of 11,260 SF with imposing 12 ft ceilings throughout. Meticulously designed, this oasis has top of the line finishes offering a majestic foyer, breathtaking oversized living room, dining room, fabulous kitchen and family room, exquisite mahogany library, bar, splendid master suite and bathroom with huge closets, plus 4 in suite bedrooms, powder room and the most impressive and striking terraces.

Property Details of 445 Grand Bay Drive, Unit PH-1A

Property Details

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Mortgage Calculator


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Est. Mortgage:
$/month over payments
Federal 30-year interest rate: 6.5300000000000000000000000000000000000000% last updated on May 28, 2026. * The above figures are estimates provided by Union Street Media using the FRED® API, and are not endorsed or certified by the Federal Reserve Bank of St. Louis. Check with your lender for actual interest rates.
Listed by Jorge Boj and Brigitte Nachtigall of Great Properties International LLC

Listing Sold by One Sotheby's International Realty

The multiple listing information is provided by Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are © 2026 Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Data last updated on May 30, 2026

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